In the Linux kernel, the following vulnerability has been resolved:
ice: Fix PTP NULL pointer dereference during VSI rebuild
Fix race condition where PTP periodic work runs while VSI is being rebuilt, accessing NULL vsi->rx_rings.
The sequence was: 1. ice_ptp_prepare_for_reset() cancels PTP work 2. ice_ptp_rebuild() immediately queues PTP work 3. VSI rebuild happens AFTER ice_ptp_rebuild() 4. PTP work runs and accesses NULL vsi->rx_rings
Fix: Keep PTP work cancelled during rebuild, only queue it after VSI rebuild completes in ice_rebuild().
Added ice_ptp_queue_work() helper function to encapsulate the logic for queuing PTP work, ensuring it's only queued when PTP is supported and the state is ICE_PTP_READY.
Error log: [ 121.392544] ice 0000:60:00.1: PTP reset successful [ 121.392692] BUG: kernel NULL pointer dereference, address: 0000000000000000 [ 121.392712] #PF: supervisor read access in kernel mode [ 121.392720] #PF: error_code(0x0000) - not-present page [ 121.392727] PGD 0 [ 121.392734] Oops: Oops: 0000 [#1] SMP NOPTI [ 121.392746] CPU: 8 UID: 0 PID: 1005 Comm: ice-ptp-0000:60 Tainted: G S 6.19.0-rc6+ #4 PREEMPT(voluntary) [ 121.392761] Tainted: [S]=CPU_OUT_OF_SPEC [ 121.392773] RIP: 0010:ice_ptp_update_cached_phctime+0xbf/0x150 [ice] [ 121.393042] Call Trace: [ 121.393047] <TASK> [ 121.393055] ice_ptp_periodic_work+0x69/0x180 [ice] [ 121.393202] kthread_worker_fn+0xa2/0x260 [ 121.393216] ? __pfx_ice_ptp_periodic_work+0x10/0x10 [ice] [ 121.393359] ? __pfx_kthread_worker_fn+0x10/0x10 [ 121.393371] kthread+0x10d/0x230 [ 121.393382] ? __pfx_kthread+0x10/0x10 [ 121.393393] ret_from_fork+0x273/0x2b0 [ 121.393407] ? __pfx_kthread+0x10/0x10 [ 121.393417] ret_from_fork_asm+0x1a/0x30 [ 121.393432] </TASK>
CVSS Details
- CVSS 3.1 Base Score: 4.7
- CVSS 3.1 Vector: (CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alma_linux | — | Upgrade kernel-rt-modules-coreUpgrade kernel-rt-debug-develUpgrade kernel-zfcpdump-develUpgrade kernel-64k-modulesUpgrade kernel-rt-64k-debug-coreUpgrade kernel-uki-virt-addonsUpgrade kernel-zfcpdump-modulesUpgrade kernel-rt-64k-modulesUpgrade kernel-64k-devel-matchedUpgrade libperfUpgrade kernel-rtUpgrade kernel-tools-libs-develUpgrade kernel-debug-modules-extraUpgrade kernel-rt-debug-modules-extraUpgrade rvUpgrade kernel-zfcpdump-coreUpgrade kernel-64k-debug-devel-matchedUpgrade kernel-headersUpgrade kernel-uki-virtUpgrade kernel-64k-debugUpgrade kernel-rt-64k-debug-modulesUpgrade kernel-rt-64k-modules-coreUpgrade kernel-devel-matchedUpgrade kernel-zfcpdump-modules-coreUpgrade kernel-64kUpgrade kernelUpgrade kernel-rt-64k-modules-extraUpgrade kernel-cross-headersUpgrade kernel-rt-64k-debugUpgrade kernel-modules-coreUpgrade kernel-rt-64kUpgrade kernel-debug-devel-matchedUpgrade kernel-rt-64k-debug-modules-extraUpgrade kernel-64k-coreUpgrade kernel-abi-stablelistsUpgrade kernel-64k-debug-modules-extraUpgrade kernel-debugUpgrade kernel-rt-develUpgrade kernel-64k-debug-coreUpgrade kernel-rt-modules-extraUpgrade kernel-coreUpgrade kernel-toolsUpgrade kernel-modules-extraUpgrade kernel-64k-modules-coreUpgrade kernel-rt-debug-modules-coreUpgrade kernel-rt-64k-debug-develUpgrade kernel-rt-debug-modulesUpgrade kernel-tools-libsUpgrade kernel-rt-debug-coreUpgrade kernel-64k-develUpgrade kernel-64k-modules-extraUpgrade kernel-rt-modulesUpgrade kernel-zfcpdump-devel-matchedUpgrade kernel-debug-develUpgrade kernel-64k-debug-develUpgrade kernel-debug-uki-virtUpgrade kernel-rt-64k-develUpgrade python3-perfUpgrade kernel-rt-64k-debug-modules-coreUpgrade kernel-rt-debugUpgrade kernel-rt-64k-coreUpgrade kernel-zfcpdump-modules-extraUpgrade rtlaUpgrade kernel-debug-modules-coreUpgrade kernel-develUpgrade kernel-64k-debug-modules-coreUpgrade kernel-docUpgrade kernel-debug-coreUpgrade kernel-64k-debug-modulesUpgrade kernel-rt-coreUpgrade kernel-debug-modulesUpgrade kernel-modulesUpgrade perfUpgrade kernel-zfcpdump | Apr 16, 2026 | Apr 6, 2026 |
| Debian | — | Upgrade linux | Jul 23, 2026 | Jul 23, 2026 |
| Oracle_linux | — | Upgrade kernel | Apr 22, 2026 | Feb 14, 2026 |
| Redhat_linux | — | Upgrade kernelUpgrade kernel-rtNo solution exists | Apr 7, 2026 | Feb 14, 2026 |
| Rocky_linux | — | Upgrade kernel-zfcpdump-devel-matchedUpgrade kernel-debug-modulesUpgrade kernel-rt-debugUpgrade kernel-rt-debug-develUpgrade kernel-zfcpdumpUpgrade kernel-tools-libsUpgrade kernel-rt-develUpgrade kernel-rt-coreUpgrade kernel-debug-modules-extraUpgrade kernel-debug-develUpgrade kernel-modulesUpgrade kernel-rt-debug-modulesUpgrade kernel-coreUpgrade kernel-debug-coreUpgrade kernel-debug-uki-virtUpgrade kernel-rt-debuginfoUpgrade kernel-debug-debuginfoUpgrade kernel-rt-debug-coreUpgrade kernel-rt-debug-debuginfoUpgrade kernel-modules-extraUpgrade kernel-tools-debuginfoUpgrade kernel-uki-virtUpgrade kernel-zfcpdump-develUpgrade rtlaUpgrade kernel-debuginfoUpgrade kernel-zfcpdump-modules-extraUpgrade kernel-debug-modules-coreUpgrade kernel-develUpgrade kernel-rt-debug-modules-coreUpgrade kernel-rt-modulesUpgrade kernel-rt-modules-coreUpgrade python3-perf-debuginfoUpgrade kernel-debuginfo-common-x86_64Upgrade kernel-debugUpgrade kernelUpgrade kernel-modules-coreUpgrade kernel-rt-modules-extraUpgrade kernel-zfcpdump-coreUpgrade kernel-rt-debug-modules-extraUpgrade kernel-rtUpgrade kernel-uki-virt-addonsUpgrade kernel-debug-devel-matchedUpgrade kernel-zfcpdump-modulesUpgrade libperfUpgrade kernel-debuginfo-common-s390xUpgrade perfUpgrade kernel-zfcpdump-debuginfoUpgrade python3-perfUpgrade kernel-devel-matchedUpgrade kernel-toolsUpgrade libperf-debuginfoUpgrade kernel-tools-libs-develUpgrade rvUpgrade perf-debuginfoUpgrade kernel-zfcpdump-modules-core | Apr 14, 2026 | Apr 11, 2026 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | Jul 17, 2026 | Feb 14, 2026 |
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